Frequently asked questions
What does it do?
It removes most of the deuterium from your drinking water. Deuterium is a heavier form of hydrogen found naturally in all water, usually sitting around 150 parts per million. Yavelle is brought down to 25, independently verified batch by batch.
Why lower it? Deuterium is the subject of a growing body of research, much of it looking at its place in the body's metabolism.
You can learn more on the following pages
What is deuterium?
Deuterium is hydrogen carrying an extra neutron. It is stable, not radioactive, and it occurs naturally in all water on earth.
Standard ocean water sits near 155 parts per million. Most tap water falls between 130 and 155, varying with latitude and altitude. Yavelle is 25.
Does Deuterium Depleted Water (DDW) taste bad?
No, quite the opposite. Most people describe it as clean and slightly soft, largely indistinguishable from a good quality mineral water. A fair number notice nothing at all, and we would rather tell you that than have you feel you are missing something.
How much should I drink?
Some people start with a bottle a day in the morning, but most drink between one and two litres a day by swapping the water they already drink for Yavelle. The easiest place to start is to replace your normal daily water.
If you are new to it, a common approach is a bottle or two a day to begin with, building up from there. You can also mix Yavelle with your usual water to make it go further. Because the deuterium level is what counts, mixing changes the concentration, and our intake calculator shows you exactly what any blend works out to.
Drink it chilled or at room temperature, on its own or in your tea and coffee. Pick an amount that suits your day and your budget, and keep it as part of your routine.
Can I heat, boil or freeze it?
Yes. Heating, boiling and freezing do not meaningfully change the deuterium level. What does change the concentration is mixing or diluting it with other liquids.
This makes it ideal to use to brew your favourite tea or coffee, and we highly recommend you use it this way.
Are there side effects?
Yavelle is purified water with reduced deuterium, so there is nothing in it that would ordinarily cause a problem. If you have concerns, or if you are managing a health condition, please consult a qualified medical professional before making changes to your diet.
Any precautions I should know about?
If you are pregnant, nursing, or have an illness or medical condition, consult your doctor before making significant dietary changes.
Why is DDW more expensive than regular water?
Lowering deuterium levels is not something standard filtration can achieve. Basic filtration, reverse osmosis and typical distillation are not designed to selectively reduce deuterium in any meaningful way.
Producing DDW requires specialised, industrial scale equipment and significant energy input. It is made using low temperature vacuum rectification, a method that separates water molecules based on subtle differences in physical properties.
That requires purpose built infrastructure, including very large separation columns, which is why DDW is a premium product.
Can I produce DDW at home?
Not really. There are many videos and posts claiming it is possible, but the most that home methods achieve is a change of one or two per cent in deuterium level.
Yavelle contains roughly 80 per cent less deuterium than normal drinking water. The difference is not close.
Where is your water produced?
We source our water in the USA, where it undergoes independent laboratory testing for purity and deuterium content. Our latest certificate of analysis is published on the site.
How does Yavelle compare to other brands?
Yavelle prioritises our customers. We understand that a steady supply is important. This is why we encourage our subscription plans and discount accordingly. Worldwide shortages of DDW are common, so we make sure to hold many months' supply for these customers. We will simply turn off new sales if there is ever a severe shortage and prioritise our subscription base to ensure you never go without.
Yavelle is also very clear about our sourcing from a quality facility in the USA. Full certification is available for all our products to confirm this.
Can I get my own deuterium level measured?
Not easily. The methods exist, isotope ratio mass spectrometry being the reference one, but they live in laboratories rather than clinics.
The larger problem is that there are no established clinical reference ranges, so even if you got a number back there is no validated chart telling you what it means. We do not sell a test, and we could.
What does the research say?
There is published research literature on deuterium depletion going back decades, largely from Hungarian and Romanian research groups. A 2024 scoping review in Metabolomics is a reasonable place to start.
To learn more, visit our research page
Where are you based?
Yavelle is an Australian founded company with stock held in Australia and the USA for fast local fulfilment in both markets.
What is your shipping policy?
Shipping is free in Australia, New Zealand and the USA. Local shipping times will vary, so please see our shipping page.
Do you offer subscription plans?
Yes. Many people incorporate DDW into their long term daily hydration routine, and subscriptions are discounted compared to one-off orders. You can pause or cancel from your account at any time without contacting us, or contact us directly, and we will do it for you.
Please review our detailed subscription page for more details